Polling for a VGA device on an old system can be quite expensive,
causing latencies on the order of 600ms. As we hold the mode mutex for
this time and also need the same mutex to move the cursor, we trigger a
user-visible stall.
The real solution would involve improving the granulatity of the
On Thu, 2010-08-12 at 20:57 +0100, Chris Wilson wrote:
> Polling for a VGA device on an old system can be quite expensive,
> causing latencies on the order of 600ms. As we hold the mode mutex for
> this time and also need the same mutex to move the cursor, we trigger a
> user-visible stall.
You
Polling for a VGA device on an old system can be quite expensive,
causing latencies on the order of 600ms. As we hold the mode mutex for
this time and also need the same mutex to move the cursor, we trigger a
user-visible stall.
The real solution would involve improving the granulatity of the
Polling for a VGA device on an old system can be quite expensive,
causing latencies on the order of 600ms. As we hold the mode mutex for
this time and also need the same mutex to move the cursor, we trigger a
user-visible stall.
The real solution would involve improving the granulatity of the
On Thu, Aug 12, 2010 at 3:57 PM, Chris Wilson
wrote:
> Polling for a VGA device on an old system can be quite expensive,
> causing latencies on the order of 600ms. As we hold the mode mutex for
> this time and also need the same mutex to move the cursor, we trigger a
> user-visible stall.
>
>
Polling for a VGA device on an old system can be quite expensive,
causing latencies on the order of 600ms. As we hold the mode mutex for
this time and also need the same mutex to move the cursor, we trigger a
user-visible stall.
The real solution would involve improving the granulatity of the
On Thu, Aug 12, 2010 at 3:57 PM, Chris Wilson ch...@chris-wilson.co.uk wrote:
Polling for a VGA device on an old system can be quite expensive,
causing latencies on the order of 600ms. As we hold the mode mutex for
this time and also need the same mutex to move the cursor, we trigger a
